â¢Major IEC 60601-1 3rd Ed. FDA has announced an official date of 2010-06 when they will accept submissions to 3 rd edition. The EU date of 2012-06-01 has been published in the Official Journal. CB Scheme mandatory use for 3 rd edition varies per the policy of each member country.
Plants and photosynthetic algae and bacteria use energy from sunlight to combine carbon dioxide (C02) from the atmosphere with water (H2O) to form carbohydrates. These carbohydrates store energy. Oxygen (O2) is a byproduct that is released into the atmosphere. This process is known as photosynthesis.
During these reactions light energy is converted to chemical energy. Chlorophyll and other pigments absorb energy from sunlight. This energy is transferred to the photosystems responsible for photosynthesis. Water is used to provide electrons and hydrogen ions but also produces oxygen.